CN108954405B - Dry burning prevention stove - Google Patents

Abstract

The invention provides an anti-dry-burning stove which comprises a weighing device and a control device. The weighing device is arranged below the top panel and is used for detecting the total weight of the cookers above the cooking range and the materials inside the cookers and/or the vibration acceleration of the cookers. The control device is electrically connected with the detection part and is configured to close or keep opening the gas switch of the cooking range according to the gross weight change of the cookers and the materials in the cookers and the vibration acceleration of the cookers. The stove also comprises a plurality of shielding pieces, wherein each shielding piece is arranged above one limiting hole and used for shielding the limiting hole above the liquid containing disc so as to prevent liquid in the cooker from dripping and flowing into the limiting hole, prevent a circuit device of a weighing device below the cooker from being short-circuited or damaged and improve the working reliability of the weighing device.

Description

Dry burning prevention stove

Technical Field

The invention relates to a kitchen ware, in particular to an anti-dry-burning kitchen range.

Background

A gas range is a common cooking utensil in modern households, which heats or cooks food by burning gas to generate open fire. Such a gas range is generally provided with a knob on a panel thereof for controlling the amount of fire and a fire switch, and a user opens/closes the gas range by the knob. However, in some cases, the user may forget to turn off the gas stove during cooking, the material in the cooker is heated for a long time, the liquid is dried, and the phenomenon of dry burning occurs. A plurality of burning processes are continuously carried out, which not only can burn food and cause waste, but also can cause overhigh temperature of the cooker and fire disasters in serious cases. Therefore, in the field of gas cookers, it is an important research topic to intelligently close a gas switch to prevent dry burning.

In order to solve the above problems, a temperature sensor is disposed on the surface of the gas cooker or near the position where a cooker is placed, so as to detect the temperature of the cooker. When the temperature of the cooker exceeds the threshold temperature, the dry burning is judged to occur, the gas switch is automatically switched off, and the gas stove stops working. However, the temperature threshold at which dry burning occurs is not the same in different cases due to the different cooking methods of the users at a time, and cannot be summarized. However, the gas stove is generally provided with only one temperature threshold point, which may cause inaccurate judgment of the time point of dry burning of the gas stove. For example, when a user fries food, the temperature of the cooker is higher than that of other cooking modes, and in this case, the gas stove may not be actually dried, and the gas switch is automatically turned off, so that the food is not cooked; or when a user cooks food, the temperature of the cooker is lower than that of other cooking modes, in this case, dry-burning may occur, and the gas stove cannot cut off the gas switch in time, so that potential safety hazards are generated.

Disclosure of Invention

In view of the above, the present invention has been developed to provide a dry-fire resistant hob which overcomes, or at least partially solves, the above mentioned problems.

One purpose of the invention is to prevent the stove from dry burning.

Another object of the invention is to improve the operational reliability of the weighing device.

Another object of the invention is to make the support member more stable.

The invention provides an anti-dry-burning stove, which comprises: the cooking range comprises a range body and a control device, wherein the range body comprises a table panel for bearing cookers, and the table panel is provided with a range hole; the liquid containing disc is arranged on the periphery of the cooking range in a vertically floating manner, the upper surface of the liquid containing disc is used for bearing cookers, and a plurality of limiting holes are formed in the liquid containing disc; the weighing device is arranged below the table panel, the top end of the weighing device supports the liquid containing disc, and the weighing device is used for detecting the total weight of the cookers above the cooking range and the materials in the cookers and/or the vibration acceleration of the cookers; the top end of the weighing device is also provided with a plurality of upward limiting bulges, and each limiting bulge extends into the corresponding limiting hole so as to prevent the liquid containing disc from shaking relative to the weighing device; the plurality of shielding pieces are arranged at the end part of one limiting bulge and are used for shielding the limiting hole above the liquid containing disc so as to prevent liquid in the cooker from dripping and flowing into the limiting hole; and the control device is electrically connected with the weighing device and is configured to close or keep opening a gas switch of the cooking range according to the gross weight change of the cookers and the materials in the cookers and the vibration acceleration of the cookers.

Optionally, each shield comprises: the boss is fixedly arranged on the liquid containing disc and is positioned above the limiting hole, and a hole allowing the limiting bulge to be exposed is formed in the middle of the boss; the center of the umbrella-shaped structure is fixedly connected with the top of the limiting bulge, the concave cavity of the umbrella-shaped structure faces downwards, and the surface of the concave cavity of the umbrella-shaped structure is in contact with the upper surface of the boss so as to seal the limiting hole.

Optionally, the weighing apparatus comprises: a support member having a top end extended upward to directly or indirectly support the cooker; and a detecting part disposed at the bottom end of the supporting part, for determining the total weight of the cooker and its internal material and/or the vibration acceleration of the cooker by sensing the weight and/or vibration acceleration transmitted by the supporting part.

Optionally, the support member comprises: the fixed plate is horizontally placed on the induction key of the detection part; the bottom end of each supporting rod is fixedly connected with the fixing plate, and the top end of each supporting rod extends upwards to support the liquid containing disc; the top end of each strut is provided with a limit bulge which protrudes upwards.

Optionally, the fixing plate is a cross-shaped flat plate with central symmetry; the number of the supporting rods is 4, and the supporting rods are respectively arranged at four end parts of the cross-shaped flat plate.

Optionally, the bottom of each supporting rod connecting fixing plate is also provided with a heat insulation part, and the heat insulation part is made of heat insulation materials.

Optionally, the above anti-dry cooking stove further comprises: the pot rack is arranged on the liquid containing disc and used for supporting a cooker; the bottom surface of the pot frame shields the limiting hole.

Optionally, the detection means comprises: the gravity sensor is used for detecting the total weight of the cooker and the materials inside the cooker; and an acceleration sensor for detecting a vibration acceleration of the cooker.

Optionally, the above dry-heating prevention cooker further comprises: and the bottom plate is arranged at the bottom of the detection part and used for bearing the weighing device.

Optionally, the above dry-heating prevention cooker further comprises: the gas pipe is communicated with the cooking range and an external gas supply pipeline and is used for supplying gas to the cooking range; the electromagnetic valve is arranged on the gas pipe and is used for opening or closing the gas pipe; the control device is connected with the electromagnetic valve circuit to control the open-close state of the gas pipe.

The invention provides an anti-dry-burning stove which comprises a weighing device and a control device. The weighing device is arranged below the table panel and used for detecting the total weight of the cookers above the cooking range and the materials in the cookers and/or the vibration acceleration of the cookers. The control device is electrically connected with the detection part and is configured to close or keep opening the gas switch of the cooking range according to the gross weight change of the cookers and the materials in the cookers and the vibration acceleration of the cookers. The stove also comprises a plurality of shielding pieces, wherein each shielding piece is arranged above one limiting hole and used for shielding the limiting hole above the liquid containing disc so as to prevent liquid in the cooker from dripping and flowing into the limiting hole, prevent a circuit device of a weighing device below the cooker from being short-circuited or damaged and improve the working reliability of the weighing device. During cooking, once liquid splashes from the cooker, the splashed liquid is blocked by the umbrella-shaped structure and flows into the liquid containing plate along the surface of the boss, so that the liquid is convenient to collect and wipe.

Further, the support member of the weighing apparatus includes: a fixed plate and a plurality of struts. The fixed plate is horizontally placed on the induction key of the detection component. The bottom end of each of the plurality of supporting rods is fixedly connected with the fixing plate, and the top end of each of the plurality of supporting rods extends upwards to support the liquid containing disc. According to the dry-burning-prevention stove, the detection part is separated from the cooker through the support rod in the support part, so that the heat of the cooker is prevented from being transferred to the sensor in the detection part, and an element in the sensor is heated, so that inaccurate data measurement is caused.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic view of a dry-fire resistant cooktop according to one embodiment of the present invention;

FIG. 2 is a schematic view of a dry-fire resistant cooktop removal pot rack according to one embodiment of the present invention;

FIG. 3 is a schematic view of the internal structure of a dry-fire proof cooktop according to one embodiment of the invention;

FIG. 4 is a schematic view of a weighing device of a dry-fire resistant cooktop according to one embodiment of the present invention;

FIG. 5 is a schematic diagram of a detection component of an anti-dry-burn hob according to one embodiment of the present invention;

FIG. 6 is a side cross-sectional view of a dry fire prevention cooktop according to one embodiment of the present invention;

FIG. 7 is an enlarged partial schematic view of area A of FIG. 6;

FIG. 8 is a schematic structural view of a boss of the dry-fire prevention hob according to one embodiment of the present invention;

FIG. 9 is a schematic structural view of a shield for a dry-fire resistant cooktop according to one embodiment of the present invention;

fig. 10 is a schematic view of a control method of an anti-dry-fire cooker according to one embodiment of the present invention.

Detailed Description

The invention provides an anti-dry-burning stove, as shown in figure 1, in the embodiment, the stove is a gas stove. This gas-cooker includes: a cooking range body 10, a weighing device 30 and a control device. The cooking range body 10 includes a top panel 11 for carrying cookers and a bottom case 12 located below the top panel 11, where the top panel 11 and the bottom case 12 jointly define a holding cavity of the cooking range body 10, and the holding cavity is mainly used for holding a main control board and related circuit elements of a gas pipe and a cooking range. Feet 14 are provided at the positions of four corners of the bottom case 12 for supporting the cabinet 10. Such cookware includes, but is not limited to, woks, autoclaves, pans, and the like. The top plate 11 is provided with a cooking hole 20, the cooking hole 20 is used for burning gas to generate fire power, and the cooker is placed right above the cooking hole 20 to heat and cook food. The number of the cooking ranges 20 may be 1 or more, and in the present embodiment, the number of the cooking ranges 20 is two, which is generally called "double range". The cooking hob 20 further comprises: the specific structure of the fire cover, the ignition needle and the like is well known to those skilled in the art, and will not be described herein.

As shown in fig. 3, a weighing device 30 is disposed below the deck plate 11 for detecting the total weight of the cookers and their contents on the cooktop 20 and the vibration acceleration of the cookers. As shown in fig. 4, the weighing device 30 further includes: a support member 31 and a detection member 32. The top end of the support member 31 extends upward to the deck plate 11 to directly or indirectly support the cooker. In this embodiment, the deck plate 11 further includes: a drip tray 111. The drip pan 111 is disposed right above the support member 31 for receiving liquid splashed from the cooker to prevent the liquid from entering the cooking range 20. The drip pan 111 is provided at the outer periphery of the cooktop 20, and is provided separately from the other portions of the deck plate 11, so that it can slightly float up and down as the weight of the cooker changes. The upper surface of which carries the cookware and the lower surface of which abuts the top end of the support member 31. That is, the support portion actually supports the drip tray 111, the drip tray 111 carrying the cookware, or the support portion indirectly supports the cookware. In other embodiments of the present invention, the tray 111 may not be provided, and the top end of the supporting portion may extend out of the platform 11 (for example, through a through hole reserved on the platform 11) to directly support the bottom surface of the cookware.

The sensing part 32 is provided at the lower end of the supporting part 31, and determines the total weight of the cooker and its contents and/or the vibration acceleration of the cooker by sensing the weight and/or the vibration acceleration transferred from the supporting part 31. As shown in fig. 5, specifically, the detection part 32 includes a housing 321, inside which a gravity sensor 323 and an acceleration sensor 324 are integrally provided. The gravity sensor 323 is used for detecting the total weight of the cookware and the materials inside the cookware on the supporting part 31, and since the supporting part 31 may further include the liquid containing tray 111 and other devices, when detecting the total weight of the cookware and the materials inside the cookware, the weight of the liquid containing tray 111 and other devices needs to be deducted from the measured data to obtain the actual weight of the cookware and the materials inside the cookware. The acceleration sensor 324 is used to detect the vibration acceleration of the cooker. The acceleration sensor 324 is a sensor capable of measuring acceleration. The damper is generally composed of a mass, a damper, an elastic element, a sensitive element, an adaptive circuit and the like. In the acceleration process, the sensor obtains an acceleration value by measuring the inertial force borne by the mass block and utilizing Newton's second law. Common acceleration sensors 324 include capacitive, inductive, strain-type, piezoresistive, piezoelectric, etc., depending on the sensor's sensing elements. The upper surface of shell 321 is provided with response button 322, and two sensors inside shell 321 are connected to response button 322, and two sensors obtain data such as weight and vibration acceleration through detecting the pressure that applies to the response button.

In the present embodiment, the support member 31 further includes: a fixed plate 311 and a plurality of struts 312. The fixing plate 311 is horizontally placed on the sensing button 322 of the detecting component 32, and the fixing plate 311 can be fixed on the housing 321 of the detecting component 32 by a vertically installed screw, so as to ensure that the fixing plate 311 and the sensing button 322 do not move relatively in the horizontal direction, but the fixing plate 311 can move within a certain range in the vertical direction. The length of each strut 312 is equal and the vertical extension sets up, and the bottom of each strut 312 is fixed connection fixed plate 311, and in this embodiment, the bottom of each strut 312 is connected with fixed plate 311 through the screw, and in some other embodiments, also can be through mode such as welding or gluing. The top end of the strut 312 extends upward to support the drip tray 111. In this embodiment, the section of each strut 312 near the top end further has a bent portion for reinforcing and supporting the liquid tray 111. In order to make the liquid containing tray 111 more stable, a limiting protrusion 313 protruding upwards is provided at the top end of each supporting rod 312, a limiting hole 112 is provided at a corresponding position of the liquid containing tray 111, and each limiting protrusion 313 is inserted into the corresponding limiting hole 112 to ensure that the liquid containing tray 111 does not slide relative to the supporting member 31. Preferably, a plurality of supporting rods 312 are disposed near the edge of the fixing plate 311, and two adjacent rods are uniformly distributed at the same interval, so that each supporting rod 312 is uniformly stressed, and the fixing plate 311 is more stable.

In this embodiment, the fixing plate 311 is a cross-shaped plate with a central symmetry; the number of the supporting rods 312 is 4, and the supporting rods are respectively arranged at four end parts of the cross-shaped flat plate. A portion of the support member 31 is disposed in the receiving cavity of the range body 10, and another portion is disposed under the bottom case 12. Specifically, the plurality of supporting rods 312 are disposed in the accommodating cavity, the fixing plate 311 is disposed below the bottom casing 12, and the bottom casing 12 is further provided with a plurality of through holes for the supporting rods 312 to pass through.

In order to prevent the liquid in the cooker from splashing into the limiting hole 112 during the cooking process, the anti-dry cooking stove further has a plurality of shielding members 50, as shown in fig. 6 and 7, each shielding member 50 is disposed above one limiting hole 112 and is used for shielding the limiting hole 112 above the liquid containing plate 111 to prevent the liquid in the cooker from dripping into the limiting hole 112. In this embodiment, the number of the shielding members 50 is 4, and the shielding members respectively shield 4 of the limiting holes 112. Specifically, as shown in fig. 8 and 9, each shutter 50 includes: a boss 51 and an umbrella structure 52. The boss 51 is fixedly disposed on the liquid containing tray 111 and located above the limiting hole 112, a hole allowing the limiting protrusion 313 to be exposed is disposed in the middle of the boss 51, and the limiting protrusion 313 penetrates through the hole. In the present embodiment, the boss 51 and the liquid containing tray 111 are integrally formed, and the boss 51 is directly formed on the liquid containing tray 111 by punching. The center of the umbrella-shaped structure 52 is fixedly connected with the top of the limiting protrusion 313, and the concave cavity of the umbrella-shaped structure 52 faces downwards. The cavity surface of the umbrella-shaped structure 52 is contacted with the upper surface of the boss 51, and the umbrella-shaped structure 52 and the boss 51 are overlapped up and down to form a completely closed structure so as to close the limiting hole 112. Once liquid has been spilled from the cookware during cooking, the spilled liquid is blocked by the umbrella structure 52 and flows along the surface of the boss 51 into the drip tray 111 for collection and wiping.

The supporting member 31 of the present embodiment has a central symmetrical structure, and each supporting rod 312 is stressed uniformly and runs more stably, so that the liquid tray 111 or the cooker does not slide obliquely, and the measurement data of the detecting member 32 is more accurate. Meanwhile, the supporting rod 312 in the supporting part 31 separates the detecting part 32 from the cooker, and prevents heat of the cooker from being transferred to the sensor in the detecting part 32, so that elements in the sensor are heated, and data measurement is inaccurate. Preferably, a thermal insulation part 314 may be further provided at the end of each strut 312 connected to the fixing plate 311 to further block heat transfer. The heat insulating portion 314 is made of a heat insulating material, for example: heat insulating rubber, heat insulating plastic, etc.

The control means is electrically connected to the sensing part 32 and configured to close a gas switch of the cooktop 20 or adjust gas power of the cooktop 20 according to a change in the total weight of the cooktop and its contents and a change in vibration acceleration of the cooktop.

The above-mentioned dry combustion method-preventing cooking utensils still include: a pot holder 13. The pot rack 13 is arranged on the liquid containing tray 111 and is concentric with the liquid containing tray 111, and the pot rack 13 is used for supporting a cooker. The pot holder 13 further includes: the square bottom frame and a plurality of supporting pieces are arranged on the upper surface of the bottom frame. A quadrangular base frame is provided around the cooktop 20. Each support piece has a tip directed toward the center of the bottom frame to collectively support cookware above the cooktop 20. The four sides of the quadrangular bottom frame are close to the edge of the liquid containing disc 111 and cover the positioning holes on the liquid containing disc 111 and the limiting protrusions 313 at the top ends of the plurality of support rods 312, so as to ensure the complete and beautiful appearance of the stove body 10.

The above anti-dry cooking stove may further include: and a bottom plate 40 disposed at the bottom of the detection part 32 for carrying the weighing device 30. During the specific installation process of the cooker, the bottom plate 40 can be suspended and fixed on the lower surface of the bottom shell 12 through a plurality of suspension rods.

The anti-dry-burning stove also comprises: gas pipe, solenoid valve. (for a better illustration of the weighing device, the gas pipe, the solenoid valve, etc. are not shown in the drawings.) the gas pipe communicates with the burner 20 and an external gas supply pipe for supplying gas to the burner 20. One end of the gas pipe connected to the burner 20 enters the receiving cavity of the body 10 and is connected to the burner 20 from below the deck plate 11. The gas pipe line reaches from the middle gap between two adjacent supporting rods 312 to the position right below the burner 20. The gas pipe is spaced from the two struts 312 by a distance to avoid mechanical interference.

The electromagnetic valve is arranged on the gas pipe and used for opening or closing the gas pipe. The control device is connected with the electromagnetic valve circuit to control the open-close state of the gas pipe. The control device may achieve automatic closing of the solenoid valve by sending an electromagnetic pulse to the solenoid valve. The specific principles are well known to those skilled in the art and will not be described in detail herein.

The invention also provides a control method of the dry-burning-resistant stove. Fig. 10 is a schematic diagram of a control method of a dry-burning prevention cooker according to an embodiment of the invention, which is used for automatically cutting off a gas switch of the cooker when dry burning occurs to the cooker so as to realize a dry-burning prevention function. The above control method generally comprises the steps of:

step S1002, detecting the weight of the cooker and the material in the time when the gas switch is turned on, and calculating the weight reduction speed. The weight of the cooker and the material is detected using the gravity sensor 323 in the detecting part 32.

Step S1004, detecting the acceleration of the cooker and the material. The acceleration of the cooker is detected using the acceleration sensor 324 in the detecting part 32, and the magnitude of the acceleration is used to represent the intensity of vibration of the cooker. In general, when more moisture is present in the cookware, the boiling is severe and the vibration of the cookware is relatively severe. And if the user does not turn on the gas switch or actively turns off the gas switch, stopping the related detection of the weight and the acceleration.

Step S1006, judging whether the acceleration of the cooker and the material is smaller than the acceleration threshold value, and the weight descending speed of the cooker and the material is larger than the weight descending speed threshold value. When the materials in the cooker are dried, the water content in the cooker is reduced rapidly, so that the weight reduction speed of the cooker and the materials is obviously increased. Meanwhile, when the cooking utensil is dry-burned, the inside of the cooking utensil is almost free of moisture and does not boil violently, and when the cooking utensil is not dry-burned, the inside of the cooking utensil contains more moisture and boils violently. Therefore, the vibration of the cooker during dry burning is significantly reduced, and the vibration acceleration is also reduced.

And step S1008, if the judgment result in the step S1006 is yes, determining that dry burning occurs in the cooker, closing a gas switch of the cooker at the moment, and stopping heating. At the same time, the detection part 32 stops the detection of the weight and the acceleration. According to the control method, whether dry burning occurs or not is comprehensively judged by using the dual conditions of weight and vibration acceleration, the judgment result is more accurate, the time point for closing the gas switch can be accurately determined, and the condition that the gas switch is automatically closed when dry burning or food is not cooked thoroughly is avoided.

It should be understood by those skilled in the art that, without being particularly described, terms used for indicating orientation or positional relationship in the embodiments of the present invention, such as "upper", "lower", "left", "right", "front", "rear", and the like, are based on the actual use state of the cooker, and are only used for convenience of description and understanding of the technical solution of the present invention, and do not indicate or imply that the device or component referred to must have a specific orientation, and thus, cannot be understood as limiting the present invention.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims (9)

1. An anti-dry cooking stove comprising:

the cooking range comprises a range body and a control device, wherein the range body comprises a table panel for bearing cookers, and the table panel is provided with a range hole;

the liquid containing disc can be arranged at the periphery of the cooking range in a vertically floating manner, the upper surface of the liquid containing disc is used for bearing cookers, and a plurality of limiting holes are formed in the liquid containing disc;

the weighing device is arranged below the table panel, the top end of the weighing device supports the liquid containing disc, and the weighing device is used for detecting the total weight of the cookers above the cooking range and the materials in the cookers and/or the vibration acceleration of the cookers; the top end of the weighing device is also provided with a plurality of upward limiting bulges, and each limiting bulge extends into the corresponding limiting hole to prevent the liquid containing disc from shaking relative to the weighing device;

each shielding piece is arranged above one limiting hole and used for shielding the limiting hole so as to prevent liquid in the cooker from dripping and flowing into the limiting hole;

the control device is electrically connected with the weighing device and is configured to close or keep opening a gas switch of the cooking range according to the change of the gross weight of the cookers and the materials inside the cookers and the vibration acceleration of the cookers;

wherein each of the blinders comprises:

the boss is fixedly arranged on the liquid containing disc and is positioned above the limiting hole, and a hole allowing the limiting protrusion to be exposed is formed in the middle of the boss;

umbrella-shaped structure, its center fixed connection spacing bellied top, and umbrella-shaped structure's cavity sets up downwards, umbrella-shaped structure's cavity surface with the upper surface contact of boss, in order to seal spacing hole.

2. The dry fire prevention hob according to claim 1, wherein the weighing device comprises:

a support member having a top end extended upward to directly or indirectly support the cooker; and

and the detection part is arranged at the bottom end of the supporting part and is used for determining the total weight of the cooker and the materials in the cooker and/or the vibration acceleration of the cooker by sensing the weight and/or the vibration acceleration transmitted by the supporting part.

3. The dry-fire resistant cooktop of claim 2, wherein the support member comprises:

the fixed plate is horizontally placed on the induction key of the detection part; and

the bottom end of each supporting rod is fixedly connected with the fixing plate, and the top end of each supporting rod extends upwards to support the liquid containing disc; the top end of each strut is provided with the limiting bulge which protrudes upwards.

4. The dry-fire prevention cooktop of claim 3, wherein

The fixing plate is a cross-shaped flat plate with a central symmetry;

the branch is 4, set up respectively in four tip of cross flat board.

5. The dry-fire prevention hob according to claim 3 or 4, wherein

Each support rod is connected with the bottom of the fixing plate and is also provided with a heat insulation part, and the heat insulation part is made of heat insulation materials.

6. The dry-fire resistant cooktop of claim 1, further comprising:

the pot rack is arranged on the liquid containing disc and used for supporting the cooker;

the bottom surface of the pot frame shields the limiting hole.

7. The dry-fire prevention hob according to claim 2, wherein the detection component comprises:

the gravity sensor is used for detecting the total weight of the cooker and the internal materials thereof; and

an acceleration sensor for detecting a vibration acceleration of the cooker.

8. The dry-fire prevention cooktop of claim 2 further comprising:

and the bottom plate is arranged at the bottom of the detection part and is used for bearing the weighing device.

9. The dry-fire resistant cooktop of claim 1, further comprising:

the gas pipe is communicated with the cooking range and an external gas supply pipeline and is used for supplying gas to the cooking range; and

the electromagnetic valve is arranged on the gas pipe and used for opening or closing the gas pipe; wherein

The control device is connected with the electromagnetic valve circuit to control the open-close state of the gas pipe.

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